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All results from a given calculation for C5H6 (3-Penten-1-yne, (E)-)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-192.785651
Energy at 298.15K-192.790410
Nuclear repulsion energy138.939546
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3632 3285 65.04      
2 A 3329 3011 32.90      
3 A 3323 3005 2.89      
4 A 3254 2943 27.47      
5 A 3177 2873 42.53      
6 A 2379 2152 8.11      
7 A 1861 1683 8.02      
8 A 1622 1467 11.91      
9 A 1551 1403 2.75      
10 A 1444 1306 3.36      
11 A 1429 1292 1.16      
12 A 1217 1100 0.44      
13 A 1090 985 8.54      
14 A 974 881 4.07      
15 A 795 719 45.56      
16 A 585 529 6.60      
17 A 420 380 3.16      
18 A 188 170 1.73      
19 A 3223 2915 36.87      
20 A 1613 1458 7.83      
21 A 1180 1067 3.42      
22 A 1089 985 46.39      
23 A 898 812 0.01      
24 A 751 679 53.70      
25 A 497 450 2.29      
26 A 205 185 0.02      
27 A 184 167 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 20954.4 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 18951.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-311G*
ABC
1.31266 0.07543 0.07227

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.329 -0.416 0.000
H2 -2.751 -0.904 0.873
H3 -2.751 -0.904 -0.873
H4 -2.651 0.619 0.000
C5 -0.834 -0.532 0.000
H6 -0.427 -1.530 0.000
C7 0.000 0.495 0.000
H8 -0.376 1.504 0.000
C9 1.431 0.356 0.000
C10 2.614 0.268 0.000
H11 3.666 0.185 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 C10 H11
C11.08611.08611.08341.49892.20382.50032.73813.83794.98976.0247
H21.08611.74651.75802.13912.56033.20753.49314.45425.56076.5672
H31.08611.74651.75802.13912.56033.20753.49314.45425.56076.5672
H41.08341.75801.75802.15043.09212.65412.44134.09065.27676.3319
C51.49892.13912.13912.15041.07781.32272.08652.43293.53984.5570
H62.20382.56032.56033.09211.07782.06893.03392.64713.53284.4379
C72.50033.20753.20752.65411.32272.06891.07691.43772.62373.6789
H82.73813.49313.49312.44132.08653.03391.07692.14093.23524.2516
C93.83794.45424.45424.09062.43292.64711.43772.14091.18622.2415
C104.98975.56075.56075.27673.53983.53282.62373.23521.18621.0553
H116.02476.56726.56726.33194.55704.43793.67894.25162.24151.0553

picture of 3-Penten-1-yne, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 116.635 C1 C5 C7 124.667
H2 C1 H3 107.036 H2 C1 H4 108.265
H2 C1 C5 110.675 H3 C1 H4 108.265
H3 C1 C5 110.675 H4 C1 C5 111.759
C5 C7 H8 120.456 C5 C7 C9 123.561
H6 C5 C7 118.698 C7 C9 C10 178.684
H8 C7 C9 115.984 C9 C10 H11 179.726
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.642 -0.031   -0.300
2 H 0.224 0.030   0.102
3 H 0.224 0.030   0.102
4 H 0.219 0.027   0.095
5 C -0.141 -0.048   0.019
6 H 0.224 0.109   0.131
7 C -0.379 -0.238   -0.308
8 H 0.233 0.164   0.220
9 C 0.016 0.153   0.121
10 C -0.258 -0.511   -0.523
11 H 0.279 0.315   0.341


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.029 -0.346 0.000 1.085
CHELPG        
AIM        
ESP -1.023 -0.320 0.000 1.072


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.944 -0.112 0.000
y -0.112 -29.835 0.000
z 0.000 0.000 -33.490
Traceless
 xyz
x 6.718 -0.112 0.000
y -0.112 -0.618 0.000
z 0.000 0.000 -6.100
Polar
3z2-r2-12.199
x2-y24.891
xy-0.112
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.628 1.585 0.000
y 1.585 6.410 0.000
z 0.000 0.000 4.259


<r2> (average value of r2) Å2
<r2> 157.870
(<r2>)1/2 12.565